Math Problem Statement

Which of the following formulas could represent a function with a domain of all Real numbers?

y=(1)/(x), y=x, y=\sqrt(x), x=5

Solution

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Math Problem Analysis

Mathematical Concepts

Functions
Domain and Range

Formulas

y = 1/x
y = x
y = sqrt(x)
x = 5

Theorems

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Suitable Grade Level

Grades 9-12